[INFO] updating cached repository lordisma/Pattern_Design
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lordisma/Pattern_Design
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lordisma/Pattern_Design" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/lordisma/Pattern_Design"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/lordisma/Pattern_Design'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lordisma/Pattern_Design" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/lordisma/Pattern_Design"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/lordisma/Pattern_Design'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b8aca5af938da8ceac50dba88f3a08f95af91a8b
[INFO] sha for GitHub repo lordisma/Pattern_Design: b8aca5af938da8ceac50dba88f3a08f95af91a8b
[INFO] validating manifest of lordisma/Pattern_Design on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lordisma/Pattern_Design on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lordisma/Pattern_Design
[INFO] finished frobbing lordisma/Pattern_Design
[INFO] frobbed toml for lordisma/Pattern_Design written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/lordisma/Pattern_Design/Cargo.toml
[INFO] started frobbing lordisma/Pattern_Design
[INFO] finished frobbing lordisma/Pattern_Design
[INFO] frobbed toml for lordisma/Pattern_Design written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/lordisma/Pattern_Design/Cargo.toml
[INFO] crate lordisma/Pattern_Design already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking lordisma/Pattern_Design against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-4/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/lordisma/Pattern_Design:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 747d6fc14573071a89e2482594a237c24892bc4b4cbd2e29fd19e85adbcbd1e7
[INFO] running `"docker" "start" "-a" "747d6fc14573071a89e2482594a237c24892bc4b4cbd2e29fd19e85adbcbd1e7"`
[INFO] [stderr]     Checking patterns v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `sub`
[INFO] [stderr]   --> src/main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let sub : ConcreteSubject<ConcreteClient>;
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_sub`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `obs`
[INFO] [stderr]   --> src/main.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let obs : ConcreteClient;
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_obs`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sub`
[INFO] [stderr]   --> src/main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let sub : ConcreteSubject<ConcreteClient>;
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_sub`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `obs`
[INFO] [stderr]   --> src/main.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let obs : ConcreteClient;
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_obs`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "747d6fc14573071a89e2482594a237c24892bc4b4cbd2e29fd19e85adbcbd1e7"`
[INFO] running `"docker" "rm" "-f" "747d6fc14573071a89e2482594a237c24892bc4b4cbd2e29fd19e85adbcbd1e7"`
[INFO] [stdout] 747d6fc14573071a89e2482594a237c24892bc4b4cbd2e29fd19e85adbcbd1e7